Well, here's the update.I did purchase the Ecodiesel. As I said earlier I tow 5-6k per year and I didn't want a 3/4 ton, or bigger, for a daily driver. While I wasn't towing today I got 23 mpg going up to 7000' from 1400'. Over on the Ram1500diesel forum they all extol the virtues of this set up. I really appreciate conversation that has taken place her. My thanks to everyone that contributed. I won't be towing for a couple of months but when I do I will start a thread to share my observations. Again, thanks for the info, it really helped.
RichH